Teknor Industrial Computers PCI-934, Technical Reference Manual

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PCI-934 Technical Reference Manual
6-6
6.2.2 Cache Memory
Internal Cache
The internal cache memory, also known as L1, is CPU integrated. The L1 memory size
depends on the CPU model:
- 8K, 8K separated data and instructions L1, for Pentium processors
- 16K, 16K separated data and instructions L1, for Pentium MMX processors
- 32K, 32K separated data and instructions L1, for K6 processors
External Cache
The external cache memory, also known as L2 cache, is implemented with 512KB
Synchronous Pipelined SRAM. This feature enhances the operation of the circuit by
eliminating wait states on cache accesses.
6.3 BACKUP MEMORY
An onboard 3.6V lithium battery is provided to backup BIOS setup values and the real time
clock (RTC).
When replacing, the battery must be connected as follows:
WARNING
- Danger of explosion if battery is incorrectly replaced -
Replace only with the same or equivalent type recommended by the
manufacturer. Dispose of used batteries according to the
manufacturer's instructions.
3 .6 V
L ithiu m B a tte ry
P os itiv e C o n ta c t
N e g a tiv e C o n ta c t
O n b o ar d Ba tte ry
P os itiv e Pin
(c e n te re d p in ) N e g a tiv e Pin
(o u te r pin )